Optimize str2date function

The job can be any string date format convert to AX date format.

so that, Do not need to specify string date format, such as 123,132,321

static void FAN_DateTimeNET(Args _args)
{
    name        name;
    transDate   dt;

transdate getTransDate(name   _dateStr)
{
    System.DateTime netDatetime;
    transdate       ret;
    utcdateTime     utcDate;
;
    new InteropPermission(InteropKind::ClrInterop).assert();
    utcDate     = System.DateTime::Parse(_dateStr);
    netDatetime = System.DateTime::Parse(_dateStr);

    ret         = datetimeUtil::date(utcDate);

    info(netDatetime.ToLongDateString());//2013/8月/6日
    CodeAccessPermission::revertAssert();
    return ret;
}
    ;
    name = "6/Aug/2013";
    dt = getTransDate(name);
    info(strfmt("%1", dt));//2013/8/6

    dt = str2date(name, );
    info(strfmt("%1", dt));//空
}